TY - RPRT TI - Stratigraphy and characteristic mollusks of the Pamunkey Group (Lower Tertiary) and the Old Church Formation of the Chesapeake Group— Virginia coastal plain AU - Lauck W. Ward PY - 1985 DO - 10.3133/pp1346 UR - https://pubs.usgs.gov/publication/pp1346 ID - pp1346 ER -